Hi Simon, I just used a cheap Matt Black, no preparation other than a good wash and dry. They've held up really well other than a few scuffs from feet near the bottom....
Hi S&S, I've a 1979 project and just looked under the bonnet. Mine has the same amount of offset as in your pics so it must be a standard thing. I'll try get a pic of mine tomorrow, I have the pedal boxes removed and the bulkhead is 'holy'!.....